R help - Sep 2012 - How to determine R version?

Hi,

What's the best approach to determine if a user uses an R version before
2.15.1
patched?
I know that the sessionInfo() command provides details, but I'm not sure how
the output of sessionInfo() is best used to determine R versions. This seems to
work, but a) there is certainly a better way and b) I'm not sure where the
"patched" will appear in the string. 

if(sessionInfo()$R.version$minor < "15.1") ...

Cheers,

Marius

On 22-09-2012, at 19:32, Marius Hofert wrote:
> Hi,
> 
> What's the best approach to determine if a user uses an R version
before 2.15.1
> patched?
> I know that the sessionInfo() command provides details, but I'm not
sure how
> the output of sessionInfo() is best used to determine R versions. This
seems to
> work, but a) there is certainly a better way and b) I'm not sure where
the
> "patched" will appear in the string. 
> 
> if(sessionInfo()$R.version$minor < "15.1") ...
?getRversion 

is an option

Berend